We analyse the behavior of the thermal conductivity, κ(H), in the vortex state of a quasi-two-dimensional d-wave superconductor when both the heat current and the applied magnetic field are in the basal plane. At low temperature the effect of the field is accounted for in a semiclassical approximation, via a Doppler shift in the spectrum of the nodal quasiparticles. In that regime κ(H) exhibits twofold oscillations as a function of the angle between the direction of the field in the plane and the direction of the heat current, in agreement with experiment. © 2000 Elsevier Science B.V. All rights reserved.
Publication Source (Journal or Book title)
Physica C: Superconductivity and its Applications
Vekhter, I., & Hirschfeld, P. (2000). Angle-dependent magnetothermal conductivity in d-wave superconductors. Physica C: Superconductivity and its Applications, 341-348 (PART 2), 1947-1948. https://doi.org/10.1016/S0921-4534(00)01417-9